CN202652109U - Solar point concentrating photovoltaic power generation device - Google Patents
Solar point concentrating photovoltaic power generation device Download PDFInfo
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- CN202652109U CN202652109U CN2012201841405U CN201220184140U CN202652109U CN 202652109 U CN202652109 U CN 202652109U CN 2012201841405 U CN2012201841405 U CN 2012201841405U CN 201220184140 U CN201220184140 U CN 201220184140U CN 202652109 U CN202652109 U CN 202652109U
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- cover body
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- power generation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a solar point concentrating photovoltaic power generation device. The solar point concentrating photovoltaic power generation device comprises a condensing lens, a concentrator cell, a cell matrix, and a reflection reduction cover body. The focal point of the condensing lens is located between the condensing lens and the concentrator cell. The reflection reduction cover body is fixed on the cell matrix, and the concentrator cell is located inside the reflection reduction cover body. The reflection reduction cover body comprises a spherical housing and a supporting housing, and a reflecting layer is arranged inside the reflection reduction cover body. An incidence hole is arranged at the center of the spherical housing, condenser light enters the reflection reduction cover body through the incidence hole and irradiates onto the concentrator cell, a part of the light is reflected by the surface of the concentrator cell to be irradiated onto the inner surface of the spherical housing, and the reflected light is reflected by the reflecting layer to be irradiated onto the surface of the concentrator cell via the original incidence path, so the utilization rate of the condenser light is improved. Uniform superposed radiation is formed on the surface of the concentrator cell through the reflection inside the reflection reduction cover body. The solar point concentrating photovoltaic power generation device has the following advantages: the reflection loss on the surface of photovoltaic cell can be further reduced, the utilization rate of the condenser light is improved, and the original condenser radiation distribution uniformity is not changed.
Description
Technical field
The utility model relates to technical field of solar utilization technique, particularly relates to a kind of device that sunlight is carried out the concentrating photovoltaic power generation utilization.
Background technology
Solar energy is a kind of regenerative resource of cleanliness without any pollution, and is inexhaustible; fully development and use solar energy not only can be saved day by day exhausted conventional energy resource; alleviate severe shortage of resources problem, but also can reduce pollution, the biological environment that to protect mankind is depended on for existence.
In numerous solar utilization techniques, common are the most solar energy power generating, solar energy thermal-power-generating, solar water heater etc.Wherein, solar concentrating photovoltaic power generation also is a kind of important form of utilizing solar energy.Solar concentrating photovoltaic power generation generally is to utilize lens or reflect focalization mode, and solar light focusing is surperficial at a less photovoltaic cell.For practical application, the application of the Fresnel Lenses of point focusing is comparatively general.But owing to the cost of the photovoltaic cell that comprises GaAs battery, III-V family multichip semiconductor joint solar cell etc. that is used at present high power concentrator is higher, hindered applying of solar concentrating photovoltaic power generation.Therefore, person skilled also in the light concentrating times and the photoelectric conversion efficiency that improve constantly photovoltaic cell with seek assiduously, thereby improved the electric energy conversion amount of the photovoltaic cell on the unit are, relative reduce the use cost of photovoltaic cell, thereby cost of electricity-generating is decreased.
When solar focusing was on the photovoltaic cell surface, reflection loss can occur.In order to reduce reflection loss, usually adopt many kinds of measures: a kind of is to use antireflective film at battery surface.This tunic is by interference effect, in theory with the upper surface of film with partly lead the light that alms bowl reflects at the interface and cancel out each other its both phase difference 180.So the former has offset the latter to a certain extent.A kind of measure is to reduce reflection by surface wool manufacturing.Any coarse surface energy increases rebound the again probability on surface of reverberation, rather than light is directly reflexed in the air, has so just reduced reflection.These techniques that reduce the technology that reflects are all very complicated, and cost is higher, and still some light can be reflected.
Summary of the invention
In order to overcome in a concentrating photovoltaic power generation technology, the shortcoming and defect that the technical measures that make the photovoltaic cell surface reduce reflection loss exist, the utility model provides a kind of solar energy point concentrating photovoltaic power generation device, can further reduce the reflection loss on photovoltaic cell surface, raising is to the utilance of optically focused light, improve the utilance of optically focused light, and do not change the uniformity of original optically focused radiation profiles.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of solar energy point concentrating photovoltaic power generation device comprises collector lens, concentrator cell, battery matrix, antireflective cover body.Concentrator cell is installed on the battery matrix, the concentrator cell upper surface is parallel with the collector lens surface, collector lens focuses on solar incident ray and forms sun optically focused light, sun optically focused rays pass through lens focus is radiated on the concentrator cell, and the lens focus of collector lens is between collector lens and concentrator cell.The antireflective cover body is fixed on the battery matrix, and concentrator cell is inner at the antireflective cover body.
The antireflective cover body comprises spherical shell, support housing, and wherein the spherical shell centre bit is equipped with the incident hole, and support housing is column type, and there is the reflector antireflective cover body inside.
Lens focus forms mirror image focus take the surface of concentrator cell as the symmetrical mirror image planes, and mirror image focus is the centre of sphere of spherical shell inner surface.According to how much and optical knowledge as can be known, the radius of spherical shell inner surface is 2 times of the lens focus surface distance that arrives concentrator cell, lens focus just in time is positioned at the center that enters perforation on the spherical shell, sun optically focused light all enters antireflective cover body inside by entering perforation, be radiated on the concentrator cell, part light forms reflection ray directive spherical shell inner surface after by the concentrator cell surface reflection, reflection through the reflector, the surface that exposes to concentrator cell by former incident path again is used for opto-electronic conversion, has improved the utilance of optically focused light.
Sun optically focused light all enters antireflective cover body inside by entering perforation, and it is uniform being radiated at the lip-deep radiation intensity of concentrator cell.The reflection ray that is formed by the concentrator cell surface also is uniformly by reflective layer reflects to the lip-deep radiation intensity of concentrator cell of spherical shell inner surface again, and by optical knowledge as can be known, the radiation intensity after twice uniform radiation stack also is uniform.The photoelectric conversion efficiency that the optically focused light of uniform radiation intensity forms at concentrator cell also is identical, thereby makes concentrator cell have best opto-electronic conversion performance.
The beneficial effects of the utility model are: can further reduce the reflection loss on photovoltaic cell surface, improve the utilance to optically focused light, and not change the uniformity of the distribution of original optically focused radiation.
Description of drawings
Fig. 1 is that three-dimensional cross-section structure of the present utility model is used schematic diagram.
Fig. 2 is cross-section structure and the part light path schematic diagram by symmetry axis of the present utility model.
Fig. 3 is three TV structure schematic diagrames of antireflective cover body of the present utility model.
Number in the figure is described as follows:
1-collector lens, 2-concentrator cell, 3-battery matrix, 4-antireflective cover body, 5-spherical shell, 6-enter perforation, 7-reflector, 8-support housing, 10-solar incident ray, 11-sun optically focused light, 12-reflection ray, 13-lens focus, 14-mirror image focus.
Embodiment
As shown in Figure 1 and Figure 2, the utility model provides a kind of solar energy point concentrating photovoltaic power generation device, comprises collector lens 1, concentrator cell 2, battery matrix 3, antireflective cover body 4.Concentrator cell 2 is installed on the battery matrix 3, concentrator cell 2 upper surfaces are parallel with collector lens 1 surface, collector lens 1 focuses on solar incident ray 10 and forms sun optically focused light 11, sun optically focused light 11 scioptics focuses 13 are radiated on the concentrator cell 2, and the lens focus 13 of collector lens 1 is between collector lens 1 and concentrator cell 2.Antireflective cover body 4 is fixed on the battery matrix 3, and concentrator cell 2 is in antireflective cover body 4 inside.
Such as Fig. 2, shown in Figure 3, antireflective cover body 4 comprises spherical shell 5, support housing 8, and wherein spherical shell 5 centre bits are equipped with incident hole 6, and support housing 8 is column type, be conducive to change in size equalization when being heated, make antireflective cover body 4 once-formings when also being conducive to injection molding.There is reflector 7 antireflective cover body 4 inside.
As shown in Figure 3, lens focus 13 forms mirror image focus 14 take the surface of concentrator cell 2 as the symmetrical mirror image planes, and mirror image focus 14 is centre ofs sphere of spherical shell 5 inner surfaces.According to how much and optical knowledge as can be known, the radius of spherical shell 5 inner surfaces is lens focuss 13 to 2 times of the surface distance of concentrator cell 2, lens focus 13 just in time is positioned at the center that enters perforation 6 on the spherical shell 5, sun optically focused light 11 all enters antireflective cover body 4 inside by entering perforation 6, be radiated on the concentrator cell 2, part light forms reflection ray 12 directive spherical shells 5 inner surfaces after by concentrator cell 2 surface reflections, reflection through reflector 7, the surface that exposes to concentrator cell 2 by former incident path again is used for opto-electronic conversion, has improved the utilance of optically focused light.The light of reflection for the second time through concentrator cell 2 surface by the incident path of sun optically focused light 11, reflex to beyond the antireflective cover body 4 and are not utilized through entering perforation 6.
As shown in Figure 3, sun optically focused light 11 all enters antireflective cover body 4 inside by entering perforation 6, and it is uniform being radiated at concentrator cell 2 lip-deep radiation intensity.It also is uniformly that the reflection rays 12 that formed by concentrator cell 2 surface reflex to concentrator cell 2 lip-deep radiation intensity by the reflector 7 of spherical shell 5 inner surfaces again, and by optical knowledge as can be known, the radiation intensity after twice uniform radiation superposes also is uniform.The optically focused light of radiation intensity also is identical in the photoelectric conversion efficiency that concentrator cell 2 forms uniformly, thereby makes concentrator cell 2 have best opto-electronic conversion performance.
As shown in Figure 3, the reflectivity of supposing concentrator cell 2 surfaces is 10%, the reflectivity in reflector 7 is 100%, then the utilance of 2 pairs of sun optically focused of concentrator cell light 11 is by 90%, bring up to and utilize 99% behind the antireflective cover body 4,1% the optically focused light of only having an appointment is not utilized to external radiation through entering perforation 6.
As shown in Figure 1, a collector lens 1, concentrator cell 2 corresponding antireflective cover bodies 4.
Claims (2)
1. solar energy point concentrating photovoltaic power generation device, comprise collector lens (1), concentrator cell (2), battery matrix (3), it is characterized in that: also comprise antireflective cover body (4), the lens focus (13) of collector lens (1) is positioned between collector lens (1) and the concentrator cell (2), antireflective cover body (4) is fixed on the battery matrix (3), and concentrator cell (2) is in antireflective cover body (4) inside; Antireflective cover body (4) comprises spherical shell (5), support housing (8), wherein spherical shell (5) centre bit is equipped with incident hole (6), support housing (8) is column type, and there is reflector (7) antireflective cover body (4) inside; Lens focus (13) forms mirror image focus (14) take the surface of concentrator cell (2) as the symmetrical mirror image planes, and mirror image focus (14) is the centre of sphere of spherical shell (5) inner surface; The radius of spherical shell (5) inner surface is lens focus (13) to 2 times of the surface distance of concentrator cell (2), and lens focus (13) is positioned at the center that enters perforation (6) on the spherical shell (5).
2. a kind of solar energy point concentrating photovoltaic power generation device according to claim 1 is characterized in that: a collector lens (1), the corresponding antireflective cover body (4) of a concentrator cell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201841405U CN202652109U (en) | 2012-04-27 | 2012-04-27 | Solar point concentrating photovoltaic power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201841405U CN202652109U (en) | 2012-04-27 | 2012-04-27 | Solar point concentrating photovoltaic power generation device |
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| Publication Number | Publication Date |
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| CN202652109U true CN202652109U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201841405U Withdrawn - After Issue CN202652109U (en) | 2012-04-27 | 2012-04-27 | Solar point concentrating photovoltaic power generation device |
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| CN (1) | CN202652109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638199A (en) * | 2012-04-26 | 2012-08-15 | 新疆天和聚能光伏科技有限公司 | Solar energy point condensation photovoltaic power generation device |
-
2012
- 2012-04-27 CN CN2012201841405U patent/CN202652109U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638199A (en) * | 2012-04-26 | 2012-08-15 | 新疆天和聚能光伏科技有限公司 | Solar energy point condensation photovoltaic power generation device |
| CN102638199B (en) * | 2012-04-26 | 2015-02-18 | 新疆熠金能源科技有限公司 | Solar energy point condensation photovoltaic power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20150218 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20150218 |
|
| RGAV | Abandon patent right to avoid regrant |